Author information
Cathie Marsh Institute for Social Research, The University of Manchester, Humanities Bridgeford Street, Oxford Road, Manchester, M13 9PL, UK, david.m.lee@manchester.ac.uk.
Friday, 30 January 2015
Sexual Health and Well-being Among Older Men and Women in England: Findings from the English Longitudinal Study of Ageing.
Some Earth like Alien Planets May Begin as ''Mini-Neptune's''
This artist's illustration depicts the transformation of a "mini-Neptune" exoplanet, orbiting a red dwarf star, into a potentially habitable rocky world. Credit: Rodrigo Luger (adapted from NASA images) |
Frigid "mini-Neptune" exoplanets that take shape relatively far from red dwarfs — stars smaller and dimmer than the sun — could be dragged inward over time, eventually losing most of their thick gaseous atmospheres and ending up in spots warm enough for life as we know it to survive, a new study suggests.
Such stripped, rocky "habitable evaporative cores" (HECs) may be common around red dwarfs, which make up about 75 percent of all stars in the Milky Way galaxy, researchers said. [10 Exoplanets That Could Host Alien Life]
"Future research will have to address just how likely it is for HECs to actually be habitable," lead study author Rodrigo Luger, a Ph.D. student at the University of Washington in Seattle, wrote in a blog post. "Either way, these evaporated cores are probably lurking out there in the habitable zones of these stars, and many may be discovered in the coming years."
Red dwarfs are cooler than the sun, and they therefore burn through their fuel supply more slowly. In fact, scientists think these stars can keep on shining for trillions of years. (For comparison, the sun's lifespan is about 10 billion years.)
Red dwarfs, also known as M dwarfs, are very luminous and active in their youths, however. For hundreds of millions of years after they form, these stars blast out lots of high-energy X-rays and extreme ultraviolet (UV) radiation, which can erode or completely strip away the atmospheres of relatively nearby planets, Luger said.
Scientists have discovered a large number of mini-Neptunes — gaseous worlds more massive than Earth but smaller than "ice giants" such as Uranus or Neptune — orbiting distant stars. Mini-Neptunes consist of a rocky core surrounded by a thick hydrogen-helium atmosphere. Scientists think these planets form far from their host stars, where water and other volatile molecules exist as ice in the planet-forming disc.
So, mini-Neptunes around young red dwarfs would initially lie too far away to be reshaped by the stars' intense radiation. But computer modeling work performed by Luger and his team suggests that these planets could come closer to their stars over time.
This would happen because of tidal forces dragging the planets inward. These tidal effects arise from the fact that a star's gravitational pull is stronger on an orbiting planet's near (star-facing) side than the tug on the far side. Tidal forces can generate enormous amounts of internal energy, as the insides of a planet are stretched this way and that. And such forces can even cause planets to move, Luger said.
"The energy dissipated by the tides inside the planet has to come from somewhere. It turns out that it often comes from the orbit of the planet, which shrinks, bringing the planet closer to the star," Luger wrote in the blog post.
Some mini-Neptunes may thus migrate into the "habitable zone" (HZ) of their host stars — that just-right range of distances where liquid water could exist on a world's surface. There, the exoplanets would experience higher levels of X-ray and UV radiation, which could potentially strip away their thick atmospheres, leaving behind a rocky, Earthlike world.
"Such a planet is likely to have abundant surface water, since its core is rich in water-ice — once in the habitable zone, this ice can melt and form oceans," Luger wrote.
These HECs would be well-placed to possibly support life when the red dwarf calmed down after its initial high-activity phase.
"Many of the Earth-mass terrestrial planets detected in the HZs of M dwarfs in the coming years could be HECs," the authors write in the study, which was published this month in the journal Astrobiology. "These planets should have abundant surface water and are likely to be water worlds, whose potential for habitability should be investigated further."
Sunday, 18 January 2015
Some Useful website
http://duolingo.com is an excellent website for learning new languages. It is very intuitive and easy. You can make a profile to save your progress for free. I highly recommend this site.
http://flixfindr.com lets you to browse through a never ending scroll of movies from all of your subscription services (Amzon, Netflix, Hulu, Xfinity, HBO GO) simultaneously. <-- Sadly this only shows movies and not TV series -->
http://gutenberg.org has thousands of free e-books free to read or download in many different formats (e-pub, HTML, pdf, etc.)
http://asoftmurmur.com lets you adjust the levels of different sounds (rain, thunder, fire, etc.) to make the perfect ambiance.
http://neilarey.com is a fitness and overall healthiness website that is completely ad and product-placement free. It provides you with visuals of workouts, free meal guides, and it even with easy recipes.
http://openstaxcollege.org/students is an awesome website that lets you view or download college text books. It is completely free and legal, and is actually partially funded by the Bill & Melinda Gates Foundation.
http://tabletopaudio.com was created by a musical composer who creates 10 minute songs and ambiances originally for table top RPGs. However they are great to set a mood, get creatively inspired, or just chill to. And all the tracks are free to download!
http://librivox.org lets you stream or download thousands of free public domain audio books, read by a community of volunteers. Since they are read by volunteers some aren’t the best but there are tons of excellent readers.
http://alternativeto.net lets you find alternative software to any program. Just type in the name and find alternatives.
http://archive.org is for everything public domain; books, movies; TV shows, music, games. If it's public domain, it's here.
(source)
Friday, 16 January 2015
15 Creepiest Websites On The Internet
List of 15 websites that are actually get updated every time so i am not gonna ruined it so there were only be spoilers for the website!
the link of the websites are listed below!
check at you'r own risk!
Warning, text spoilers below!
----------------------------------------Death Date,
Plane Crash Recordings,
Staggering Beauty,
Dong Ghost,
Divine Interventions,
Maze Game,
ratemypoo.com,
Skyway Bridge Jumpers,
Simulation,
Time Cube,
Creepypasta,
Birth & Death,
Zombo.com,
Death Row,
angels-heaven
Sunday, 11 January 2015
These 32 Websites Were Blocked Recently In India For 'Jihadi Propaganda'. But Now They Have Been 'Unblocked
The government has ordered ISPs to unblock the 32 websites that had been blocked last month for hosting "jihadi propaganda", sources in the Department of Electronics and Information Technology (DeitY) said. The DeitY functions under the union ministry of communications and information technology.
The block, which had websites like github.com, vimeo.com and dailymotion.com at the receiving end, was put on the request of the Anti-Terrorism Squad, Mumbai. On December 31 itself, senior government officials had said that the unblocking process had started for websites that have complied with the Indian government's request. The block had been lifted for four websites at the time.
tnewslive.com
On Saturday, TOI could access all the 32 links listed in the original, confidential Department of Telecom (DoT) order dated December 17.
The batch of 32 websites, blocked following a November order from the additional chief metropolitan magistrate in Mumbai, included several popular websites for collaborative projects like github.com, justpaste.it, pastebin.com etc. They are typically favoured by software developers. Popular video-sharing services Vimeo and Dailymotion were also blocked.
"I would say better sense has prevailed. You can block a particular organisation's website in national interest. But with websites like pastebin, which are used by a limited audience, blocking doesn't serve any purpose. There are always other websites for wrongdoers to go to," says cyber security analyst Jiten Jain.
There has been concern over the lack of transparency of the block as well. The websites were blocked under section 69 A of the IT Act, 2000 and the IT (Procedure and safeguards for Blocking of Access of Information by Public) Rules, 2009. The rules mandate that "strict confidentiality shall be maintained regarding all the requests and complaints received and actions taken, thereof."
"It's good that the websites have been unblocked now. But the larger issue still remains that the whole procedure of blocking is confidential under the sec 69 A rules," says Prasanth Sugathan, counsel at the Software Freedom and Law Center.
In GAMING Field there is a
career in INDIA
Yup guyz you are reading it right !
in gaming field you can make you'r career easily!
Do any of you remember to play Roadrash in you'r pc
Then you are probably the '90s kid
Now coming to main conclusion...
How to get into the gaming industry in India? What people do they hire and what sort of work can you find as a gamer? How are games developed and what is the future of gaming industry in the country? We find out all the answers on this episode of Heads Up, as we take a look at India's flourishing gaming industry.
I known,I known you all were having this type of question!
believe me i also were having and having more!
if i will write many of you just read like "Bla bla bla P**p P**p oh see game oke bla bla..."
So i search everywhere and one day i have seen on T.V this video and search many site and forget how to embed this video (later i remember how to do it)
So guyz put volume on put your headset or put speakers and call your parents to watch this video and also tell your friends specially to there parents!
this video is only 21 mins long and it is taken from news channel Ndty prime
10 Bizarre Internet Dating Sites
1.Sea Captain Date dot Com
2.Mullet Passions dot Com
2.Mullet Passions dot Com
3.Amish Dating dot Com
4.Metal Dating dot Com
5.Clown Dating dot Com
6.Trekkie Dating dot Com
7.Vampire Passions dot Com
8.Zombie Passions dot Com
9.Furry Mate dot Com
10.Diaper Mates dot Com
Subscribe to:
Posts (Atom)